Nissan Frontier 2009 SE 4WD Aux Input

I have a Nissan Frontier 2009 SE 4WD with a factory head unit that's not equipped with aux input. I've searched high and low both google and various forums and the only answers I found were: get a new head unit with bluetooth and/or aux input or Wired FM Modulator. Are these really my only two options? What FM modulators would you recommend?